Food Science and Technology Research
Online ISSN : 1881-3984
Print ISSN : 1344-6606
ISSN-L : 1344-6606
Original Paper
Effect of natural selenium-enriched rice flour addition on product properties of fresh extruded rice-shaped kernels (FER) based on naked oat (Avena nuda L.)
Xiaodong WangZhiyong ZhaoXihong Li Jianxin SongZhenyuan LiuYueming Li
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2021 年 27 巻 1 号 p. 85-94

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Naked oat was used to develop a kind of fresh extruded rice-shaped kernels (FER) by extrusion technology, and natural selenium-enriched rice flour was added to solve the problems of irregular shape, dark color and hardness of extruding pure naked oat. Results showed that the addition of rice flour had significantly improved the product properties of FER including shape, color, transparency and texture. Compared to the control (CK), the contents of protein, fat and total dietary fiber (TDF) in FER decreased obviously (p < 0.05) with rice flour addition. The oat-rice FER's shape turned to plump and appearance was acceptable, and had higher water uptake ratio (WUR), elongation ratio and solid loss (SL) than CK. The hardness of FER significantly decreased (p < 0.05) after adding rice flour, and FER with 35% rice flour ratio (35% FER) had the highest sensory evaluation score (7.31 out of 9). Then 35% FER was selected for further vitro activity study, and result showed that bile acid binding rates of 35% FER were stronger than normal natural rice.

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